Valve-stem-securing means for vehicle tires



June 5, 1928.

H. W. SCHWARZ VALVE STEM SECURINEMEANS FOR VEHICLE TIRES Filed July 5, 1926 Attorney Patented .lune 5, 1928.

PATENT lorries. g

HENRY w. SCHWARZ, vor maar, 'rams VALVE-STEM-SECUBING VMEANS kFOR VEHICLE TIRES.

Application filed July 3, 1926. Serial No. 120,343.

This invention relates generally toy Wheels and tires for vehicles, and has moreparticular reference to a rim securing meansfor the valve stems of tires, thel primary object of the invention residing in the provisionfof suchmeans that will facilitate the vproper` attachment of the 'valve stem to the tire rim in contra-distinction to the telly of the' ve-v- 'hicle wheel as topermit of the removal'of the tire andfrim without requiring the removal of the usual nut from the'stem within the wheel telly which is 'frequently adiicult performancel to'saynothing of the time lrequired in performing this operation.y

The invention further aims to provide a highly novel, simple, and ciliegie-nt form of dust cap for the portion. of thevalve stem' that projects through the usual opening in;

' the wheel felly so as to permit the tire to' be properly inliatedwhen the occasion arises and to also prevent the access of dirt, water, and the like into the` valve stem afterthe tire has been properly disposed upon the Other objects will'become apparent as thel nature ofthe invention is better understood, the same comprising the'fnovelform, com'- bination, and "arrangement of parts herein-y after more fully described, shown 1n the acf companying drawing and claimed.

In the drawing whereinv like numerals indicate like parts throughout the several views:

Figure l is a fragmentary view partly in side elevation and partly in cross section disclosing a complementary constructed demountable tire rim and wheel telly together with my improved tire stem retaining means and dust cap.

Figure 2 is a detail longitudinal section taken substantially upon the line 2-2 of Figure 1 looking in a direction toward the tire rim for more clearly disclosing the valve stem rim attaching means which is disclosed partly in bottom plan and partly in cross section, and

Figure 3 is a detail longitudinal section of the means per se, taken on line 3 3 of Figure 2.

Now having particular reference to the drawings, A designates a conventional pneumatic tire arranged upon the usual demountable rim B for disposition upon the felly C of the automobile wheel. As is well known,

' the tire A carries the radially inwardly extending valve stem D that will extend through an opening in the center of the rim B as Well as a radial opening E in the telly, it being necessary i'n'this instance that the opening E be of considerably greater diameter than the diameter of the valve stem D as clearly disclosed in Figure 1.

In carrying out the present invention'l Secure the valve stem D directly to the rim B at the under side thereof and this by the provision of a lretaining meansy which' consists-,of a substantially square shaped metallic frame 5 that 'is formed at one' end with a widened portion 6, the inner edgeot' which is formed with a rounded threaded notch'7. Inwardly of this widenedvend 6 the side bars of the frame are longitudinally slotted asa-t 8-8 and movable therein are pins 9-9 upon the opposite ends of a slidingv block 10, the inner edge of which is also't'ormedwitha threaded notch 11, the threads of which are complementary tothe threads of .theV notclif 7 in the widened vend portion 6 of the frame. Swivelly associated with the ,outer edge of the head 10 at the center thereof `is the inner end'of screw bol'tf12 that is threaded through an'y opening intermediate the` ends o'f thebar ofthe frame at the opposite ends of the wide portion so that by turning of the same said head 10 will be moved inwardly or outwardly with respect to the widened portion.

Obviously by disposing this retaining member yover thek valve stem D prior to the. insertion of the same to the opening E in the wheel felly C and then by turning inwardly upon the bolt 12 which is headed at its outer end the sliding head 10 willvbe caused to tightly engage the stem D for binding the same between the head and widened portion of the'frame, thus preventing the movement of the usual inner tube that carries the stem v within the tire shoe.

Constructed for use in association with this type of retaining means I provide a highly novel valve stem dust cap that consists of a sleeve 13 of lesser length than that portion of the stem D that projects through the wheel felly and for disposition over said stem as disclosed in Fi ure 1.rv The bore of this sleeve is considera ly greater in diameter than the external diameter of the stem and the same is externally threaded at its opposite ends as indicated by the reference characters 14 and 15. The inner threaded vend of this sleevel is to beI threaded Within the inner end of the opening EA in the Wheel telly, the inner end of said'opening being complementary threaded for this purpose.

After the sleeve has been die-posedover the i stern as disclosed, alcap 16 internally threaded at its inner end is 'threaded over the eX- ternally threaded outer end of the sleeve for closing the stem to the atmosphere. Within the; closed end of the cap is a rubber or other compressible materiali head. 17 v that is SOCkeied et its inner enel tor reoeriiig the open end of the valve stein D for prevent.

in `the escape of the air should the usual vave Inechanifsni Within thel stem cease to function properly. n i

It will time bel Seen that I here provided a ,highly novel, Simple, and effieemttermK or" construction for permitting the., Securing 01 the tire valve stein directly to thlejriln; upon which; thetire is disposed/and also for pron `tecting the stern from dust'on Water afterA the tire has been disposed, upon. the, wheel,

and tor preventing the escapey of thev airfroln the tire; shouldl the VValve mehanism Cease to, function properly.

Having thusdeeerbefi' the I. Gleim es new and ters Patent iSe.

o invention, vwhat deere to Secure, by Let.-`

1, Ina Clamp,I a' trame-like member, one;` end` portieri ot the frame, berlgeoldandl provided With.I a notch in, its innery edge, a block Slideble. between` the, sides. of the frame, the inner edge of. the block,` having a,

notch, formed therein Complementary. tothe; wich in the intende@ ofthe solid portieri 0f the frame, and melensqfor; eetuatifngthe,

sliding block, said means comprising -abolt threaded through the free end "of the frame, the inner end thereof being swivelly connected to the adjacent end of the sliding block, and an actuating head on the outer end et the bolt.A o Y Y 2; n a clamp of' the class described, a framedike mernber,l one end portion thereof being solid and lprovided With a threaded notch in its. inner edge, a block Slidable between the sides of the framdrthe inner edge of the blOk having a threaded notch formed therein complementary to the threaded notch.y

infr the inner edge of, the solid portion ofi the.

frame, Ine/,ansY forv actuating the sliding bloclgand cooperating guidey ,means for the Sliding; blockbettvseerrthe` latter and the si'desof" the frame, said guide means. comprising pine. projeeting laterally fromY the opposite sides ofA the, slid-ing bleek,` the adjacent sides. of

the frame.,h.aiming,slots4 formed, therein', 'in' whichjsad pinerareo erahleA 3. In a clamp, a rame-like. member,.o11e end portionL ofthe frame. being solidl and' provided With a notch in` its inner. edge, a

block eonned between the. Sides ofthe; 

